What I also noticed in the export: the italian language was translated with deepl and is also not available with WPML AI even though the language mappings show it should be possible. See screenshots.
According to our tests, this issue with the Italain language not being mapped with the WPML AI engine will be solved in the next version of WPML. We tested this on a sandbox site with the beta version of WPML - 4.7.0-b.1. You can also check our sandbox site by using this link.
hidden link
(With this link, you'll be directly logged in.)
To validate this, our second-tier supporters suggested I install the WP STAGING plugin on your site. This will enable us to quickly create a staging site and test if the issue is solved on your site with the next version of WPML. For this, we need your permission to install the WP STAGING plugin. Do you allow us to proceed?
Alternatively, if you already have a staging site where we can test this, please share the access details with us and allow us to proceed with replacing WPML with the 4.7 beta version. I'm enabling a private message for the following reply.
Unfortunately, the problem persists also on the staging site. I need to escalate this issue to our second-tier supporters. Please allow me to take a copy of your site. I must install a plugin like Duplicator or All In One Migration for this. Please let me know if you agree.